diff options
| author | Ranjani Sridharan <ranjani.sridharan@linux.intel.com> | 2023-02-20 09:58:02 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-03-05 23:37:31 +0000 |
| commit | ae9db908517717888c4d618fdb90c02ec3fa1b3d (patch) | |
| tree | 657904c6ebdb3365d9728c156fc31d59a5c49c21 /sound/soc/sof/intel/hda-dsp.c | |
| parent | fe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff) | |
ASoC: SOF: Intel: hda: Do not re-enable L1 if disabled before suspend
We have a workaround in place to address a known issue with host DMA
running into xruns when capture streams are running. But when resuming
from Sx, we unconditionally re-enable DMI L1 without taking the
workaround into account and this could lead to xruns when a suspended
capture stream is restarted.
To fix this rename the flag l1_support_enabled to l1_disabled in struct
sof_intel_hda_dev to save the L1 disabled status which can be
set/cleared when we get/put a stream and use the flag to determine if DMI
L1 should enabled or not during the post_fw_run op.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230220075804.4829-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/intel/hda-dsp.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-dsp.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c index 68eb06f13a1f..e3b69dbc1308 100644 --- a/sound/soc/sof/intel/hda-dsp.c +++ b/sound/soc/sof/intel/hda-dsp.c @@ -776,7 +776,7 @@ int hda_dsp_resume(struct snd_sof_dev *sdev) } /* restore L1SEN bit */ - if (hda->l1_support_changed) + if (hda->l1_disabled) snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, HDA_VS_INTEL_EM2, HDA_VS_INTEL_EM2_L1SEN, 0); @@ -868,11 +868,9 @@ int hda_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state) } /* enable L1SEN to make sure the system can enter S0Ix */ - hda->l1_support_changed = - snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, - HDA_VS_INTEL_EM2, - HDA_VS_INTEL_EM2_L1SEN, - HDA_VS_INTEL_EM2_L1SEN); + if (hda->l1_disabled) + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, HDA_VS_INTEL_EM2, + HDA_VS_INTEL_EM2_L1SEN, HDA_VS_INTEL_EM2_L1SEN); /* stop the CORB/RIRB DMA if it is On */ hda_codec_suspend_cmd_io(sdev); |